Measuring Arrangement and Method of Measuring Electrical Signals

2. The measuring arrangement according to claim 1, wherein respective measurement inputs to which signals that are acquired at measurement points of the energy supply network that can be galvanically separated from one another, are assigned to different tracking groups.

3. The measuring arrangement according to claim 1, wherein the tracking groups are specified by a user-defined adjustment of the measuring arrangement.

4. The measuring arrangement according to claim 1, wherein the tracking groups are formed automatically on a basis of a topology of the energy supply network and/or of a state of switching apparatuses of the energy supply network.

5. The measuring arrangement according to claim 1, wherein said clock tracking apparatus is configured to determine in each case a frequency of one signal of each tracking group, and to adapt the sampling clock for all the measurement inputs belonging to the respective tracking group based on the frequency determined by said clock tracking apparatus.

7. The measuring arrangement according to claim 1, wherein said device for observing, monitoring and/or protecting an electrical energy supply network is a local protection device or a central data processing installation.

8. The measuring arrangement according to claim 1, wherein said device for observing, monitoring and/or protecting an electrical energy supply network is a local protection device or a central data processing installation.